[Intel-gfx] [PATCH 02/12] drm/i915/gen9: Add WaOCLCoherentLineFlush

[Arun Siluvery]

Signed-off-by: Arun Siluvery <arun.siluvery at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ab5ac5e..093a5e4 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -63,6 +63,10 @@ static void gen9_init_clock_gating(struct drm_device *dev)
 	/* WaDisableKillLogic:bxt,skl */
 	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
 		   ECOCHK_DIS_TLB);
+
+	/* WaOCLCoherentLineFlush:skl,bxt */
+	I915_WRITE(GEN8_L3SQCREG4, (I915_READ(GEN8_L3SQCREG4) |
+				    GEN8_LQSC_FLUSH_COHERENT_LINES));
 }
 
 static void skl_init_clock_gating(struct drm_device *dev)
-- 
1.9.1